Galois sub-hierarchies used for use case modelingTorim, AntsCLA 2013 : proceedings of the Tenth International Conference on Concept Lattices and Their Applications : La Rochelle, France, October 15-18, 20132013 / p. 21-32 : ill https://ceur-ws.org/Vol-1062/paper2.pdf Conference Proceedings at Scopus Article at Scopus